High-barrier and high-falling-resistance aluminum foil bag capable of being used for automatic packaging

Abstract

The aluminum foil bag comprises an aluminum foil woven bag body, the aluminum foil woven bag body comprises a bag body, a side seal and a one-way valve, a bag opening is formed in the top of the bag body, a bottom seal is arranged at the bottom of the bag body, organ structures are arranged on the two sides of the bag body respectively, and the one-way valve is arranged in the bag opening. An inclined sealing edge is arranged at the position, close to the bottom seal, of each organ structure, the inclined sealing edge is formed by heat sealing through a K-shaped mold heat sealing cutter, the organ structure on one side is provided with the side seal in the fold line direction, and a side seal inner side layer is arranged at the butt joint position of the side seal and the bag body. The side sealing inner side layer is a folded three-layer composite heat sealing film, and the one-way valve is arranged on the bag body. The air exhausting device has the advantages of being fast in air exhausting, high in barrier, high in falling resistance, capable of increasing the capacity and capable of being recycled, manufacturing cost is effectively saved, energy consumption is reduced, and environment friendliness is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging bags, and in particular to an aluminum foil bag with high barrier property and strong drop resistance for automatic packaging. Background Art

[0002] In the field of heavy packaging in the flexible packaging industry, the commonly used heavy packaging bags are paper-plastic composite bags, which have various problems: 1. Paper-plastic composite bags cannot be recycled, causing environmental pollution; 2. For high-end products such as nylon modified plastics, paper-plastic composite bags do not meet the requirements for waterproof and moisture-proof. The industry practice is to add an aluminum foil bag as an inner bag, turn it into a double-layer bag for manual bagging, and then seal it, increasing the labor cost; 3. With the demand for engineering plastics, the requirements for bag integration, automation, reduction of labor cost, and increase of efficiency are getting higher and higher; 4. In order to improve the phenomenon of environmental pollution, update the integration and automation of packaging bags to meet the market demand. Summary of the Invention

[0003] The purpose of the present invention is to provide an aluminum foil bag with high barrier property and strong drop resistance for automatic packaging, which has the advantages of being convenient for recycling, easy to manufacture and process, low cost, and high product quality, and solves the problems that the existing heavy packaging bags on the market cannot be recycled, the waterproof and moisture-proof technology does not meet the standards, affecting product quality, and high production cost.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An aluminum foil bag with high barrier property and strong drop resistance for automatic packaging of the present invention includes an aluminum foil woven bag body. The aluminum foil woven bag body includes a bag body, side seals, and a one-way valve. A bag mouth is provided at the top of the bag body, and a bottom seal is provided at the bottom. Bellows structures are respectively provided on both sides of the bag body. The bellows structure is provided with an inclined seal edge near the bottom seal. The inclined seal edge is heat-sealed by a K-type die heat-sealing knife, and one of the bellows structures is provided with the side seal along the folding line direction. A side seal inner layer is provided at the docking position of the side seal and the bag body. The side seal inner layer is a three-layer composite heat-sealing film that is folded in half. The one-way valve is provided on the bag body.

[0006] Further, the bag body is made of a five-layer dry compound structure, and the five-layer dry compound structure is bonded by a polyester layer, a pure aluminum layer, a polyethylene / polypropylene woven fabric, a nylon layer, and a polyethylene layer distributed in sequence.

[0007] Further, the material of the polyester layer is polyethylene terephthalate.

[0008] Still further, the outermost layer of the bag body is the polyester layer, and an anti-slip oil is coated on the outside of the polyester layer.

[0009] Further, the inner layer of the side seal is a three-layer composite heat-sealing film folded in half at 6 cm.

[0010] Further, the one-way valve is located on the side of the bag body where the side seal is provided.

[0011] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0012] 1. The high-barrier and strong anti-drop aluminum foil bag for automatic packaging of the present invention is made of a five-layer dry compound structure for the bag body. The polyester layer has the characteristics of high strength, wear resistance, elasticity, low water absorption, light resistance, corrosion resistance, bleach resistance, oxidation resistance, resistance to organic reagents and inorganic acids, and good insulation. The pure aluminum layer has good barrier properties and heat resistance. The polyethylene / polypropylene woven fabric has the characteristic of puncture resistance. The nylon layer has the advantages of good wash resistance, high melting point, good elasticity, wear resistance and dust resistance. The polyethylene layer has heat-sealing performance, high heat-sealing strength, good cold resistance, moisture-proof, water-blocking and chemical resistance. The five-layer dry compound structure realizes a paperless pure plastic composite bag, which is convenient for recycling.

[0013] 2. The high-barrier and strong anti-drop aluminum foil bag for automatic packaging of the present invention can increase the friction by coating anti-slip oil on the outer side of the polyester layer. When an object is placed inside the aluminum foil woven cloth bag body through the bag mouth and then sealed, the body can be prevented from slipping when stacked in whole plates.

[0014] 3. In the high-barrier and strong anti-drop aluminum foil bag for automatic packaging of the present invention, the bellows structure on both sides of the bag body can increase the capacity of the body after being unfolded. After packing items, the one-way valve on the bag body automatically discharges the air in the bag, which is 3 times faster than normal exhaust. Moreover, the inner side of the side seal of the bag body is reinforced with a 6-cm folded three-layer composite heat-sealing film, which increases the anti-drop strength of the side of the bag body by dozens of times, and it is not easy for the contents to fall out when the object drops from a high place.

[0015] 4. The high-barrier and strong anti-drop aluminum foil bag for automatic packaging of the present invention is suitable for heavy packaging automatic sealing packaging lines and manual packaging. It can be heat-sealed alone or sewn with needles. It has high barrier, strong anti-drop, can increase the capacity, can be recycled, protects the environment, saves manufacturing costs, reduces energy consumption, and has a low comprehensive cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1Schematic diagram of the structure of an aluminum foil bag with high barrier property and strong drop resistance for automatic packaging according to the present invention;

[0018] Figure 2 Schematic diagram of the five - layer dry - compound structure in the aluminum foil bag with high barrier property and strong drop resistance for automatic packaging according to the present invention.

[0019] Explanation of reference numerals: 1. Aluminum foil woven bag body; 2. Bag body; 3. Bottom seal; 4. Bag mouth; 5. Bellows structure; 6. Side seal; 7. Inner layer of side seal; 8. Diagonal seal edge; 9. Check valve; 10. Five - layer dry - compound structure; 101. Polyester layer; 102. Pure aluminum layer; 103. Polyethylene / polypropylene woven cloth; 104. Nylon layer; 105. Polyethylene layer. Detailed implementation manners

[0020] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0022] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The technical solutions provided by the embodiments of the present invention will be described in detail below with reference to the drawings.

[0024] As Figure 1As shown in the figure, the aluminum foil bag with high barrier property and strong anti-drop ability for automatic packaging in this embodiment includes an aluminum foil woven bag body 1. The aluminum foil woven bag body 1 includes a bag body 2, side seals 6 and one-way valves 9. The bag body 2 is made of a five-layer dry compound structure 10. A bag mouth 4 is provided at the top of the bag body 2, and a bottom seal 3 is provided at the bottom. Bellows structures 5 are provided on both sides of the bag body 2. When an object is put into the bag body 2 through the bag mouth 4, the bellows structures 5 on both sides of the bag body 2 can expand to increase its capacity. Oblique sealing edges 8 are provided at both sides of the bellows structures 5 near the bottom seal 3, and a side seal 6 is provided along the folding line direction of one of the bellows structures 5. A side seal inner layer 7 is provided inside the side seal 6, and the side seal inner layer 7 is a three-layer composite heat-sealing film that is folded in half. Specifically, the three-layer composite heat-sealing film is a three-layer structure of polyethylene-nylon-polyethylene.

[0025] At this time, the oblique sealing edge 8 is heat-sealed by a K-type die heat-sealing knife, which can improve the anti-drop property of the product.

[0026] Among them, a one-way valve 9 is provided on the bag body 2. The one-way valve 9 is located on the side of the bag body 2 where the side seal 6 is provided. After packaging, the one-way valve 9 on the bag body 2 can automatically discharge the air in the bag, which is 3 times faster than normal exhaust.

[0027] Moreover, by setting a complementary material at the docking position of the side seal 6 and the bag body 2, the side seal inner layer 7 is a 6-cm folded three-layer composite heat-sealing film strengthened by technology, which increases the anti-drop strength of the side of the bag body 2 by dozens of times, and it is not easy for the contents to fall out when the object drops from a high place.

[0028] As Figure 2 shown, the five-layer dry compound structure 10 is bonded by a polyester layer 101, a pure aluminum layer 102, a polyethylene / polypropylene woven fabric 103, a nylon layer 104 and a polyethylene layer 105 distributed in sequence. Specifically, the material of the polyester layer 101 is polyethylene terephthalate, realizing a paperless pure plastic composite bag, which is convenient for recycling.

[0029] At this time, for the bag body 2 made of the five-layer dry compound structure 10, its outermost layer is the polyester layer 101, and an anti-slip oil is coated on the outside of the polyester layer 101 to increase the friction. When an object is put into the aluminum foil woven bag body 1 through the bag mouth 4 and then sealed, when stacked in whole boards, it can prevent the packaged items from slipping.

[0030] The aluminum foil bag with high barrier property and strong anti-drop ability for automatic packaging in this embodiment is suitable for heavy packaging automatic sealing packaging lines and manual packaging. It can be heat-sealed alone and can also be stitch-sewn. It has high barrier property, strong anti-drop ability, can increase the capacity, can be recycled, saves manufacturing costs and reduces energy consumption.

[0031] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the spirit of the present invention's design, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An aluminum foil bag with high barrier property and strong drop resistance, which can be used for automatic packaging, Characterized in that, It includes an aluminum foil woven bag body (1), and the aluminum foil woven bag body (1) includes a bag body (2), side seals (6) and a one-way valve (9). A bag mouth (4) is arranged at the top of the bag body (2), and a bottom seal (3) is arranged at the bottom. Bellows structures (5) are respectively arranged on both sides of the bag body (2). An inclined seal edge (8) is arranged on the bellows structure (5) near the bottom seal (3). The inclined seal edge (8) is heat-sealed by a K-type die heat-sealing knife. And the side seal (6) is arranged along the fold line direction on one of the bellows structures (5). A side seal inner layer (7) is arranged at the docking position of the side seal (6) and the bag body (2). The side seal inner layer (7) is a three-layer composite heat-sealing film folded in half. The one-way valve (9) is arranged on the bag body (2).

2. The aluminum foil bag with high barrier property and strong drop resistance, which can be used for automatic packaging according to claim 1, Characterized in that, The bag body (2) is made of a five-layer dry compound structure (10), and the five-layer dry compound structure (10) is bonded by a polyester layer (101), a pure aluminum layer (102), a polyethylene / polypropylene woven fabric (103), a nylon layer (104) and a polyethylene layer (105) distributed in sequence.

3. The aluminum foil bag with high barrier property and strong drop resistance, which can be used for automatic packaging according to claim 2, Characterized in that, The material of the polyester layer (101) is polyethylene terephthalate.

4. The aluminum foil bag with high barrier property and strong drop resistance, which can be used for automatic packaging according to claim 2, Characterized in that, The outermost layer of the bag body (2) is the polyester layer (101), and an anti-slip oil is coated on the outside of the polyester layer (101).

5. The aluminum foil bag with high barrier property and strong drop resistance, which can be used for automatic packaging according to claim 1, Characterized in that, The side seal inner layer (7) is a three-layer composite heat-sealing film folded in half with a width of 6 cm.

6. The aluminum foil bag with high barrier property and strong drop resistance, which can be used for automatic packaging according to any one of claims 1-5, Characterized in that, The one-way valve (9) is located on the side of the bag body (2) where the side seal (6) is provided.

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